That's referring to one specific piece of legislation. You're leaving out the core idea coming from Heritage (mostly true: http://www.politifact.com/truth-o-meter/statements/2010/apr/...) and the influence of Massachusetts's state system (https://www.google.com/amp/boston.cbslocal.com/2013/11/13/ro...) which was itself based on the same proposal (http://www.forbes.com/sites/theapothecary/2011/10/20/how-a-c...).

This was the Republican proposal until Obama took them up on it. Anyone who remembers poor Mitt Romney having to bend himself into logical contortions during the presidential campaign knows that: it was his signature achievement as governor, previously praised by many in his party when advocating against single-payer systems, and suddenly so politically incorrect within his own party that he felt obligated to attack it or invent incredibly fine distinctions to say the ACA was different.